大约有 43,000 项符合查询结果(耗时:0.0719秒) [XML]

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Find an element in a list of tuples

I have a list 'a' 10 Answers 10 ...
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Is there a way to instantiate a class by name in Java?

I was looking as the question : Instantiate a class from its string name which describes how to instantiate a class when having its name. Is there a way to do it in Java? I will have the package name and class name and I need to be able to create an object having that particular name. ...
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Making git auto-commit

I'd like to use git to record all the changes to a file. 18 Answers 18 ...
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Enum “Inheritance”

I have an enum in a low level namespace. I'd like to provide a class or enum in a mid level namespace that "inherits" the low level enum. ...
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What is “overhead”?

I am a student in Computer Science and I am hearing the word "overhead" a lot when it comes to programs and sorts. What does this mean exactly? ...
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Selectors in Objective-C?

First, I'm not sure I really understand what a selector is. From my understanding, it's the name of a method, and you can assign it to a class of type 'SEL' and then run methods such as respondToSelector to see if the receiver implements that method. Can someone offer up a better explanation? ...
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Split code over multiple lines in an R script

I want to split a line in an R script over multiple lines (because it is too long). How do I do that? 5 Answers ...
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Difference Between One-to-Many, Many-to-One and Many-to-Many?

Ok so this is probably a trivial question but I'm having trouble visualizing and understanding the differences and when to use each. I'm also a little unclear as to how concepts like uni-directional and bi-directional mappings affect the one-to-many/many-to-many relationships. I'm using Hibernate ri...
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Is a Python list guaranteed to have its elements stay in the order they are inserted in?

If I have the following Python code 6 Answers 6 ...
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Legality of COW std::string implementation in C++11

It had been my understanding that copy-on-write is not a viable way to implement a conforming std::string in C++11, but when it came up in discussion recently I found myself unable to directly support that statement. ...